Potassium and Firdapse drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Potassium (potassium) and Firdapse (amifampridine). Common drug interactions include deep vein thrombosis among females and pneumonia among males.

The phase IV clinical study analyzes what interactions people have when they take Potassium and Firdapse. It is created by eHealthMe based on reports of 55 people who take the same drugs from the FDA, and is updated regularly.

What is Potassium?

Potassium has active ingredients of potassium. It is often used in hypokalemia. eHealthMe is studying from 59,147 Potassium users. Check the latest studies of Potassium.

What is Firdapse?

Firdapse has active ingredients of amifampridine. eHealthMe is studying from 2,112 Firdapse users. Check the latest studies of Firdapse.

On Jul, 09, 2026

55 people who take Potassium and Firdapse together, and have interactions are studied.

Potassium and Firdapse drug interactions.

What are the common drug interactions of Potassium and Firdapse, by gender? *:

female:

Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Myasthenic syndrome (a group of conditions characterized by muscle weakness (myasthenia) that worsens with physical exertion)
Abdominal pain
Dyspnoea (difficult or laboured respiration)
Abdominal pain upper
Diarrhoea
Hospitalisation
Back pain
Contusion (a type of hematoma of tissue in which capillaries)
Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall)

male:

Pneumonia
Asthenia (weakness)
Hypotension (abnormally low blood pressure)
Performance status decreased
Pulmonary oedema (fluid accumulation in the lungs)
Pyrexia (fever)
Transfusion-related acute lung injury (lung injury due to blood transfusion)
Urine output decreased
Vasospasm (sudden constriction of a blood vessel, reducing its diameter and flow rate)
Hyperhidrosis (abnormally increased sweating)

What are the common drug interactions of Potassium and Firdapse, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Diarrhoea
Feeling hot
Malaise (a feeling of general discomfort or uneasiness)
Autoimmune disorder (a condition in which the immune system attacks the body's normal substances and tissue)
Feeling of despair

50-59:

Pneumonia
Abdominal pain
Bladder pain
Colitis (inflammation of colon)
Urinary tract infection
Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)

60+:

Pneumonia
Fall
Asthenia (weakness)
Nausea (feeling of having an urge to vomit)
Pain
African trypanosomiasis (sleeping sickness)
Ageusia (loss of taste functions of the tongue)
Anosmia (partial or complete loss of the sense of smell)
Blood calcium increased
Blood parathyroid hormone increased

What are the existing conditions these people have? *

Lambert-Eaton Syndrome (this means your immune system mistakenly targets healthy cells and tissues in the body): 49 people, 89.09%
Viral Infection: 12 people, 21.82%
Pneumonia: 12 people, 21.82%
Pain: 9 people, 16.36%
Cardiac Disorder: 8 people, 14.55%
Stress And Anxiety: 6 people, 10.91%
High Blood Cholesterol: 6 people, 10.91%
Muscle Spasms (muscle contraction): 5 people, 9.09%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 4 people, 7.27%
Psoriasis (immune-mediated disease that affects the skin): 4 people, 7.27%

* Approximation only. Some reports may have incomplete information.

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